test(es): Update conformance test suite from tsc (#8834)

Author: kdy1

crates/swc/tests/tsc-references/ES3For-ofTypeCheck1.1.normal.js

@@ -9,8 +9,8 @@ try {
     _iteratorError = err;
 } finally{
     try {
-        if (!_iteratorNormalCompletion && _iterator["return"] != null) {
-            _iterator["return"]();
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+            _iterator.return();
         }
     } finally{
         if (_didIteratorError) {

crates/swc/tests/tsc-references/ES3For-ofTypeCheck4.1.normal.js

@@ -10,8 +10,8 @@ try {
     _iteratorError = err;
 } finally{
     try {
-        if (!_iteratorNormalCompletion && _iterator["return"] != null) {
-            _iterator["return"]();
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+            _iterator.return();
         }
     } finally{
         if (_didIteratorError) {